... Britain. In response to this Hitler launched the Blitz which involved night time saturation bombing (or raids) of large inner city areas which was theoretically to cripple industrial productivity and lower morale. This was supposed to make Britons more desperate for peace. The code cracking began in that year. There had been attempts to crack the codes by the Polish but were not secret enough about it and so the Germans just kept changing their codes more regularly. There was a wide array of people with different skills working at Bletchley Park. Most of the employees were maths orientated minds, chosen from top universities, particularly from Oxford and Cambridge. There were many different departments e.g. one for army codes and one for naval codes and each department had its own hut somewhere on the premises. Source D is a description of the work in hut 3 it says 'Material came in ...

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